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V okviru diplomske naloge sem pregledala znanstveno literaturo za postopke sintez kovinskih kompleksov 6-metoksikinolina z zlatom(I/III) oziroma platino(II). Enake sintezne postopke sem po preizkušenih reakcijah s 6-metoksikinolinom preizkusila še z molekulo dihidrokinidina. Pri tem sem v reakcijah spreminjala reakcijske pogoje in sinteze preizkušala z uporabo različnih topil. Večino reakcij sem opravljala v temi zaradi občutljivosti na svetlobo zlatovih in platinskih soli. Cilj diplomske naloge je bil pripraviti kompleks 6-metoksikinolina ali dihidrokinidina z zlatom oziroma platino brez nečistoč. Sintetizirane produkte sem okarakterizirala z NMR, masno spektrometrijo in rentgensko strukturno analizo. As part of my diploma thesis, I reviewed the scientific literature for the synthesis procedures of metal complexes of 6-methoxyquinoline with gold(I/III) and platinum(II). After the tested reactions with 6-methoxyquinoline, I tried the same synthesis procedures with the dihydroquinidine molecule. While doing that, I changed the reaction conditions in the reactions and tested the syntheses using different solvents. Most of the reactions were preformed in the dark, due to the light sensitivity of gold and platinum salts. The goal of my thesis was to prepare a complex of 6-methoxyquinoline or dihydroquinidine with gold or platinum without impurities. I characterized the synthesized products by NMR, mass spectrometry and X-ray structural analysis.

Cilj ovog rada bio je da se ustanovi da li dolazi do elektrohemijskog taloženja niobijuma i aluminijuma iz hloroaluminatnih rastopa obogaćenih niobijumom na podlogama od staklastog ugljenika, platine i zlata. Nadalje, ako dolazi do rečenog taloženja, da li pri tome dolazi i do formiranja legura niobijuma sa izabranim podlogama kao i da li dolazi do formiranja legura niobijuma sa zajednički taloženim aluminijumom. I na kraju, cilj je bio da se navedeni fenomeni ostvare na što nižim temperaturama.Nb i Al su elektrohemijski taloženi na staklastom ugljeniku, platini i zlatu pri 200 °C, pod atmosferom argona, iz rastopa napravljenog od ekvimolarne smeše AlCl3 + NaCl kome je dodat niobijum.U istraživanjima su korišćene: linearna i ciklička voltametrija, metoda potenciodinamičke polarizacione krive, metoda „otvorenog kola“, hronoamperometrija, SEM, EDS, AFM i XRD analiza.Elektrohemijsko taloženje Nb i Al iz primenjenih rastopa pri potpotencijalima uočeno je na podlozi od zlata. Taloženje niobijuma pri potpotencijalima na zlatu je novost, a taloženje Al na zlatu pri potpotencijalima poznato je od ranije. Elektrotaloženje Al i Nb iz primenjenih rastopa pri potpotencijalu na zlatu prethodi procesima elektrotaloženja niobijuma i aluminijuma pri natpotencijalima. Rezultat ovih procesa su Nb/Au i Al/Au legure nastale zajedničkim taloženjem i interdifuzijom istaloženog Nb, odnosno Al i podloge - zlata (AlAu, AlAu2 , AlAu4, AlNb2 , AlNb3 , Au2Nb, Au2Nb3 , AuNb3 , AlNb3).Elektrohemijsko taloženje Nb iz primenjenih rastopa pri potpotencijalima uočeno je na platini i prethodi procesima elektrotaloženja Nb i Al. Rezultat su formirane Nb/Pt legure nastale interdifuzijom istaloženog Nb i podloge - platine (Nb3Pt). Pri natpotencijalima aluminijuma na platini dolazi do taloženja metalnog niobijuma, metalnog aluminijuma i zajedničkog taloženja Nb i Al. Kao posledica ovih procesa dolazi i do formiranja legura (AlNb3, Al3Pt5 , Nb3Pt).Elektrohemijsko taloženje niobijuma iz primenjenih rastopa na izabranim podlogama odigrava se na potencijalima koji su pozitivniji od potencijala elektrotaloženja aluminijuma.Sve dobijene legure formirane su pri temperaturi od 200 °C što je nekoliko stotina stepeni niže od odgovarajućih temperatura potrebnih da se formiraju termičkim putem.&nbsp, The aim of this study was to establish electrodeposition of niobium and aluminium from chloroaluminate melt (AlCl3 + NaCl) enriched with niobium onto gold, platinum and glassy carbon substrates. Furthermore, if such deposition is shown to occur, to assess if it can lead to formation ofniobium alloys with chosen substrates or formation of Nb/Al alloys as a result of codeposition. And finally, if the deposition is indeed confirmed, to establish the lowest operational temperature at which it is possible.Niobium and aluminium were electrodeposited onto glassy carbon, gold and platinum at 200 °C, under an argon atmophere from the melt made of equimolar mixture AlCl3 + NaCl with niobium being added.Research methods used were: cyclic voltammetry, potentiodynamic polarization curves, "open circuit”, chronoamperometry, SEM, EDS, AFM and XRD analysis. Underpotential deposition of Nb and Al from the melt onto gold substrate was observed. Of the two, niobium deposition is a novelty, while alumininum deposition has been previously studied. Underpotential deposition of NB and Al onto gold from given melt precedes the overpotential deposition of aluminium and niobium onto gold. The result of these processes are Nb/Au and Al/Au alloys formed by codeposition of the two metals and interdiffusion between the Nb and Al deposits and the substrate -gold (AlAu, AlAu2, AlAu4, AlNb2, AlNb3, Au2Nb, Au2Nb3, AuNb3, AlNb3). Underpotential deposition of niobium onto platinum from used melts was recorded and it precedes the processes of overpotential deposition of niobium and aluminium. The result is formation of Nb/Pt alloys as a consequence of interdiffusion between the substrate and the deposited Nb (Nb3Pt). The potentials more negative than the aluminium deposition potential in the used system lead to deposition of niobium and aluminium individually and jointly. Thus, a number of alloys are formed (AlNb3, Al3Pt5, Nb3Pt). Niobium electrodeposition onto chosen substrates from the melt applied takes place at potentials which are more positive than the potential of electrodeposition of aluminium. Formation of the obtained alloys occurred at a temperature of 200 °C which is several hundred degrees lower than the temperatures needed for their formation by thermal methods.

Cilj ovog rada bio je da se ustanovi da li dolazi do elektrohemijskog taloženja niobijuma i aluminijuma iz hloroaluminatnih rastopa obogaćenih niobijumom na podlogama od staklastog ugljenika, platine i zlata. Nadalje, ako dolazi do rečenog taloženja, da li pri tome dolazi i do formiranja legura niobijuma sa izabranim podlogama kao i da li dolazi do formiranja legura niobijuma sa zajednički taloženim aluminijumom. I na kraju, cilj je bio da se navedeni fenomeni ostvare na što nižim temperaturama.Nb i Al su elektrohemijski taloženi na staklastom ugljeniku, platini i zlatu pri 200 °C, pod atmosferom argona, iz rastopa napravljenog od ekvimolarne smeše AlCl3 + NaCl kome je dodat niobijum.U istraživanjima su korišćene: linearna i ciklička voltametrija, metoda potenciodinamičke polarizacione krive, metoda „otvorenog kola“, hronoamperometrija, SEM, EDS, AFM i XRD analiza.Elektrohemijsko taloženje Nb i Al iz primenjenih rastopa pri potpotencijalima uočeno je na podlozi od zlata. Taloženje niobijuma pri potpotencijalima na zlatu je novost, a taloženje Al na zlatu pri potpotencijalima poznato je od ranije. Elektrotaloženje Al i Nb iz primenjenih rastopa pri potpotencijalu na zlatu prethodi procesima elektrotaloženja niobijuma i aluminijuma pri natpotencijalima. Rezultat ovih procesa su Nb/Au i Al/Au legure nastale zajedničkim taloženjem i interdifuzijom istaloženog Nb, odnosno Al i podloge - zlata (AlAu, AlAu2 , AlAu4, AlNb2 , AlNb3 , Au2Nb, Au2Nb3 , AuNb3 , AlNb3).Elektrohemijsko taloženje Nb iz primenjenih rastopa pri potpotencijalima uočeno je na platini i prethodi procesima elektrotaloženja Nb i Al. Rezultat su formirane Nb/Pt legure nastale interdifuzijom istaloženog Nb i podloge - platine (Nb3Pt). Pri natpotencijalima aluminijuma na platini dolazi do taloženja metalnog niobijuma, metalnog aluminijuma i zajedničkog taloženja Nb i Al. Kao posledica ovih procesa dolazi i do formiranja legura (AlNb3, Al3Pt5 , Nb3Pt).Elektrohemijsko taloženje niobijuma iz primenjenih rastopa na izabranim podlogama odigrava se na potencijalima koji su pozitivniji od potencijala elektrotaloženja aluminijuma.Sve dobijene legure formirane su pri temperaturi od 200 °C što je nekoliko stotina stepeni niže od odgovarajućih temperatura potrebnih da se formiraju termičkim putem.&nbsp, The aim of this study was to establish electrodeposition of niobium and aluminium from chloroaluminate melt (AlCl3 + NaCl) enriched with niobium onto gold, platinum and glassy carbon substrates. Furthermore, if such deposition is shown to occur, to assess if it can lead to formation ofniobium alloys with chosen substrates or formation of Nb/Al alloys as a result of codeposition. And finally, if the deposition is indeed confirmed, to establish the lowest operational temperature at which it is possible.Niobium and aluminium were electrodeposited onto glassy carbon, gold and platinum at 200 °C, under an argon atmophere from the melt made of equimolar mixture AlCl3 + NaCl with niobium being added.Research methods used were: cyclic voltammetry, potentiodynamic polarization curves, "open circuit”, chronoamperometry, SEM, EDS, AFM and XRD analysis. Underpotential deposition of Nb and Al from the melt onto gold substrate was observed. Of the two, niobium deposition is a novelty, while alumininum deposition has been previously studied. Underpotential deposition of NB and Al onto gold from given melt precedes the overpotential deposition of aluminium and niobium onto gold. The result of these processes are Nb/Au and Al/Au alloys formed by codeposition of the two metals and interdiffusion between the Nb and Al deposits and the substrate -gold (AlAu, AlAu2, AlAu4, AlNb2, AlNb3, Au2Nb, Au2Nb3, AuNb3, AlNb3). Underpotential deposition of niobium onto platinum from used melts was recorded and it precedes the processes of overpotential deposition of niobium and aluminium. The result is formation of Nb/Pt alloys as a consequence of interdiffusion between the substrate and the deposited Nb (Nb3Pt). The potentials more negative than the aluminium deposition potential in the used system lead to deposition of niobium and aluminium individually and jointly. Thus, a number of alloys are formed (AlNb3, Al3Pt5, Nb3Pt). Niobium electrodeposition onto chosen substrates from the melt applied takes place at potentials which are more positive than the potential of electrodeposition of aluminium. Formation of the obtained alloys occurred at a temperature of 200 °C which is several hundred degrees lower than the temperatures needed for their formation by thermal methods.

Plemenite kovine so redki kovinski kemični elementi, ki jih najdemo v naravi in imajo visoko ekonomsko vrednost. Zaradi svojih posebnih lastnosti se množično uporabljajo v industriji, njihova prožnost, mehkost in sijaj pa so tudi razlogi, zakaj se uporabljajo za izdelavo nakita. Še pred dobrim desetletjem njihova uporaba v investicijske namene ni bila tako razširjena, kot je danes. Postajajo pomemben del naložbenega portfelja, njihovo investicijsko povpraševanje pa je prišlo do izraza v obdobju svetovne finančne krize. Plemenite kovine so skozi zgodovino dokazale, da so odličen hranilec vrednosti, zaščita premoženja in zaščita pred inflacijo ter da se še posebej dobro obnesejo v slabih gospodarskih razmerah, ko zaupanje v finančni sistem oziroma papirnato valuto pade. Investicijsko usmerjena sta predvsem zlato in srebro, medtem ko platina in paladij nekoliko manj in sta bolj znana kot industrijski kovini. Naložba v plemenite kovine nam nudi številne prednosti v obliki razpršitve portfelja, zasebnosti, likvidnosti in zaščite premoženja v negotovih razmerah, na drugi strani pa so tudi nekatere slabosti, kot so shramba fizičnih kovin, precejšno nihanje cene, špekulativna dejanja, zavajajoče informacije in dejstvo, da nimajo stalnega donosa. Obstaja več možnih načinov, kako investirati v plemenite kovine, lahko gre za nakup fizične oblike, ki je najpogostejši, ali pa v papirnati obliki, ki so podprte s fizičnimi kovinami, kot so ETF skladi, certifikati, računi, izvedeni finančni instrumenti. Vsaka oblika prinaša določene prednosti in slabosti, odločitev, v katero obliko želi posameznik investirati, pa temelji na njegovih osebnih ciljih, stališčih in izkušnjah. Papirnate oblike odpirajo večjo možnost špekulacij. Cene plemenitih kovin kotirajo na borzi in se spreminjajo vsako minuto. Dejavnikov, ki vplivajo na cene plemenitih kovin, je več, to so ponudba in povpraševanje, inflacija, splošno gospodarsko stanje, ameriški dolar, dejavnosti centralne banke ter obrestna mera. Obstaja določena korelacija med njimi in cenami plemenitih kovin. Diplomsko delo je sestavljeno iz dveh delov. Prvi del opisuje splošne značilnosti plemenitih kovin, medtem ko je drugi del usmerjen v predstavitev plemenitih kovin kot eno izmed naložbenih priložnosti. Precious metals are rare metallic chemical elements that are found in nature and have a high economic value. Because of their special properties they are widely used in industry, and their flexibility, softness, and shine are also the reasons why they are used to make jewellery. Only a decade ago, their use for investment purposes was not as widespread as it is today. They are becoming an important part of the investment portfolio, and their investment demand has been evident in the period of the global financial crisis. Throughout the history, they have proven to be an excellent store of value, protection of wealth, hedge against inflation, and that they do well especially in difficult economic times when confidence in the financial system or paper currency falls. Gold and silver are more investment focused than platinum and palladium, which are more known as industrial metals. Investment in precious metals offers us many advantages in the form of portfolio diversification, privacy, liquidity, and protection of wealth in uncertain conditions, but on the other hand, there are also some disadvantages such as the storage of physical metal, substantial price volatility, speculative actions, misleading information, and they do not have fixed income. There are lot of different ways for investment in precious metals, for example you can buy them in a physical form, which is the most common way, or in a paper form, which is backed by physical metals, such as ETF funds, certificates, accounts, derivatives. Each form has certain advantages and disadvantages, and the decision in which form an individual wants to invest is based on personal goals, views, and experience. Paper forms open up greater opportunity for speculation. Precious metals prices are listed on exchange and they are changing every minute. There are many factors that affect the prices of precious metals, namely supply and demand, inflation, general economic situation, the US dollar, activities of central banks, and the interest rate. There is a certain correlation between them and the prices of precious metals. So the graduation thesis consists of two parts. The first part describes the general characteristics of the precious metals, while the second part is focused on the presentation of the precious metals as one of the investment opportunities.

Plemenite kovine so skupno ime za redke kovinske kemijske elemente, ki jih lahko najdemo v naravi in imajo visoko ekonomsko vrednost. Zgodovinsko gledano so bile pomembne kot plačilno sredstvo oziroma sredstvo menjave. Danes se jih smatra predvsem za industrijsko ter investicijsko blago. Njihova industrijska uporaba je razširjena na veliko področij. Zasledimo jih v medicini, elektrotehniki, umetnosti (nakit), kemijski industriji ter celo v prehrambni industriji. Na investicijskem področju veljajo plemenite kovine predvsem za hranitelja vrednosti. Iz tega razloga povpraševanje po njih zmeraj naraste ob pomembnih družbeno-ekonomskih ali naravnih dogodkih, ki imajo negativen vpliv na preostalo gospodarstvo. Investicije v plemenite kovine potekajo na posreden (npr. delnice rudarskih podjetij) kot tudi neposreden način (palice, kovanci …), vsekakor pa so po vrsti naložba za zavarovanje premoženja na dolgi rok in ne priložnost za hiter zaslužek. Precious metals are a common name for rare metallic chemical elements, which can be found in nature, with high economic value. Historically they have been important as currency or as a resource for exchange. Today they are regarded as investment and industrial commodities. Their industrial use is very wide. We can find usage of precious metals in medicine, electronics, art (jewelry), chemical industry and even in food industry. The role of precious metals as an investment is first of all store of value. Because of that reason, demand usually rises in events of social economic or natural events, which have a negative impact on the economy. Investments can be made indirectly (buying mining company shares) or directly (buying bars, coins,). But by all means should investments in precious metals be considered as insurance of equity in longer term rather than a quick money making opportunity.

There are evaluated possibilities in my thesis which the company with enough available financial resources has while investing at commodity markets into the gold, silver and platinum. The thesis briefly describes functions and regulation of exchange including the description of instruments the company can use for investment. Another part of my work is a description of statistical evaluation of price data of commodities. Statistical methods and formulas are also analysed in methodology. Practical part contains evaluation of price development which is also described by means of various mathematical curves. Finale of my work is discovery if and for how long it was worth to invest into gold in years 2000 - 2011. My mental hypothesis that more years investment mean higher year yield rate was disproved. The result says that the long-term investment (12 years) had the lowest year yield rate.

Namen diplomske naloge je bil validirati analizno metodo rentgenske fluorescenčne analize za merjenje masnega deleža zlata, srebra in platine v zlitinah plemenitih kovin s pomočjo referenčnih materialov, torej ovrednotiti karakteristike analizne metode in potrditi njeno primernost ali neprimernost za predvideno uporabo. V prvem delu diplomske naloge smo izdelali splošen validacijski protokol. Opredelili smo uporabo in namen metode, s sklicem na delovno dokumentacijo analizne metode. Pred validacijo smo opravili predvalidacijske eksperimente, pri katerih smo ugotovili okvirne metode. Temu primerno smo ustrezno pripravili kriterije, ki smo jih nato validirali. Nato smo izvedli eksperimente iz obsega validacije. S pomočjo referenčnih materialov smo potrdili, da je metoda, s katero smo merili masni delež posamezne plemenite kovine (zlato, srebro in platino), primerna za izbrano merilno območje. Nato smo preverjali natančnost meritev (ponovljivost in obnovljivost), točnost metode in merilno negotovost. The purpose of this thesis was to validate the analytical method of X-ray fluorescence analysis to measure the mass fraction of gold, silver and platinum alloys of precious metal by means of reference materials, therefore, to evaluate the characteristics of analytical methods and to confirm its suitability or unsuitability for intended use. First a general protocol for validation was developed. The application and the purpose of the method were evaluated. Pre-validation experiments were performed before the complete validation, During the validation the extent of characteristic parameters was performed. According to the results obtained the validation criteria were performed. Thereupon all experiments for validation were performed.using certified reference materials. It was confirmed that the XRF analytical method for mass fraction determination of particular precious metal (gold, silver and platinum) is appropriate for the selected concentration range. Precision of the results (as repeatabilty and reproducibiliy ), accuracy and measurement uncertainty were evaluated.

The thesis "Analysis of Performance of Investment Metals and Coins" deals with the evolution of prices of gold, silver, platinum and palladium. It analyzes factors which have an influence on the prices of these metals. It compares profitability and risk of the investment in gold with the index S&P 500. The strength of dependency is measured by coefficient of correlation between the variables gold and silver/ palladium/ platinum/ brent crude oil/ index S&P 500/prices of the mining company Randgold Resources Ltd. The third part of the thesis deals with the means of investing in the investment metals and it compares the advantages and disadvantages of each option.

In the present thesis structure, morphology, chemical and electronic properties of the Pt - Au/tungsten oxide model system were investigated by means of RHEED, AFM and PES. The epitaxial tungsten oxide thin films were prepared by oxidation of W(110) single-crystal surface using a RF oxygen plasma source followed by thermal annealing. Gold and Platinum were deposited "in-situ" by evaporation. Gold or platinum deposition led to the growth of oriented particles having (111) epitaxial plane as well as to the growth of polycrystalline phase. Platinum encapsulation was proved by CO adsorption observed by SRPES. Deposition of the second metal led to the formation of core - shell bimetallic clusters. Detail structure of the bimetallic system depends on the order of deposited metals and the substrate temperature. Thermal stability of the system was investigated by heating up to 600 řC.

This project deals with historical precious metals price development as gold, silver, platinum and palladium in connection to analysis of the precious metals investment benefits. There are discussed international market prices and retail prices as well. There is also mentioned the issue of price structure from the premium and other costs point of view, including possible risks coupled with investment. Approximated are also basic terms and forms of investment metals, alternative options of precious metals investment as well. The project also includes the issue of tax investment aspects and other advantages connected to it. Further there is indicated medial disinformation criticism and insufficient legal support for customers investing to the precious metals.

This bachelor thesis focuses on assessing the revenue and risk of selected commodities on the world's markets. The commodities analyzed in the thesis are gold, silver and platinum. The thesis is divided into two principal sections. The first section is a publications research, which contains a theoretical part describing the commodities market and commodity trading. The other section of the thesis focuses on the development of commodity prices from the beginning of 2005 to the beginning of 2010 and describes the risk and revenue related to investment in selected precious metals on the world's commodities markets.

The aim of the thesis is to clarify the importance of diversifying investment portfolios with the help of precious metals at the present time and to analyze the fluctuation of precious metals market in terms of demand, supply and price developments. The core of the thesis focuses on analysis of the market of precious metals from 1998 to 2011 The used work method is comparison of precious metals between themselves and the world stock indices, the method of analysis in separate calculations of indicators, the method of deduction from the results of calculations.

Cilj ovoga rada bio je da se ustanovi da li dolazi do elektrotaloženja magnezijuma na potencijalima pozitivnijimod njegovog reverzibilnog potencijala iz rastopa nitrata na izabranim podlogama. Nadalje, ako ima takvog taloženja(UPD), postavlja se pitanje da li pri tome dolazi do formiranja legura magnezijuma sa metalima podloge. I konačno,ako ima elektrotaloženja magnezijuma pri potpotencijalima (UPD) i formiranja legura sa podlogom da se navedenifenomeni ostvare na što nižim temperaturama.Na platini, zlatu i aluminijumu u rastopima: Mg(NO3)2 x 6H2O (340-400 K), eutektičke smeše Mg(NO3)2 x6H2O + NH4NO3 x XH2O (380-450 K), bezvodnog Mg(NO3)2 (440-500 K), bezvodne eutektičke smeše Mg(NO3)2 +NH4NO3 (390-500 K), magnezijum se elektrotaloži pri potencijalima pozitivinim od reverzibilnog potencijalamagnezijuma u datom rastopu (UPD magnezijuma). Precizne vrednosti potencijala UPD magnezijuma u navedimrastopima nisu se mogli odrediti zbog velikog broja reakcija redukcije nitratnih jona i vode (kada je prisutna) koje seodigravaju u istom i širem području UPD magnezijuma i deformišu i/ili prekrivaju redukcione struje UPDmagnezijuma.Kao posledica UPD magnezijuma u ispitivanim rastopima formiraju se sledeće legure:a) na platini: heksagonalna Mg3Pt, tetragonalna MgPt3;b) na zlatu: površinski centrirana tetragonalna Au4Mg, ortorombična Mg2Au, heksagonalna AuMg3,heksagonalna Au41Mg13, bazno centrirana ortorombična Au3Mg;c) na aluminijumu: prostorno centrirana kubna Al12Mg17, površinski centrirana kubna Al3Mg2,heksagonalna Mg2Al3, prostorno centrirana kubna Al2Mg.Sve navedene legure formirane su u ovome radu pri temperaturama koje su više stotina Kelvina niže odtemperatura koje su prema postojećim binarnim faznim dijagramima potrebne za njihovo formiranje termičkimputem.Pri potencijalima negativnijim od reverzibilnog potencijala magnezijuma u upotrebljenim rastopima dolazi doelektrotaloženja, u veoma malim količinama, prostorno centriranog kubnog magnezijuma koji je uočljiviji kada setaloži iz bezvodnih rastopa nego iz rastopa sa prisutnom vodom. U oba slučaja istaloženi magnezijum je sakriven utalozima magnezijum-oksida i/ili magnezijum-hidroksida koji se formiraju pri istim potencijalima.Kao posledica pokušaja elektrotaloženja magnezijuma pri katodnim prenapetostima u ispitivanim rastopimasamo se na zlatu formira kubna faza AuMg koja se ne javlja pri UPD magnezijuma pod istim uslovima na zlatu.Na staklastom ugljeniku, platini, zlatu i aluminijumu u UP i OP području magnezijuma u upotrebljenimnitratnim rastopima sa vodom i primenjenim temperaturama formiraju se sledeća jedinjenja:a) oksidi: površinski centriran MgO, kubni MgO2 i romboedarski MgO4 ib) hidroksidi: ortorombični Mg3(OH)4(NO3)2.Na istim radnim elektrodama u upotrebljenim bezvodnim rastopima u UP području magnezijuma formira seromboedarski MgO4, a u OP području magnezijuma pored njega i kubni MgO2., The aim of this work was to establish is there underpotential deposition (UPD) of magnesium from nitrate melts on chosen foreign substrates. If there was magnesium UPD, is there alloy formation with metal substrates used. Finally, if there were magnesium UPD and the alloying with the metal substrates used to perform the phenomena observed at the lowest possible temperatures. Magnesium is underpotentially deposited on platinum, gold and aluminium from the following melts: Mg(NO3)2 x 6H2O (340-400 K), eutectic mixture Mg(NO3)2 x 6H2O + NH4NO3 x XH2O (380-450 K), nonaqueous Mg(NO3)2 (440-500 K) and nonaqueous eutectic mixture Mg(NO3)2 + NH4NO3 (390-500 K). Precise values of magnesium UPD potentials in used melts could not be determined due to numereous reactions of nitrate anions and water (when present) which take place in the same UP region and deform and/or mask magnesium UPD reduction currents. Following alloys are formed as a result of magnesium UPD from the examined melts: a) on platinum: hexagonal Mg3Pt, tetragonal MgPt3; b) on gold: face-centered tetragonal Au4Mg, orthorhombic Mg2Au, hexagonal AuMg3, hexagonal Au41Mg13, ase centred orthorhomic Au3Mg; c) on aluminium: body-centered cubic Al12Mg17, face-cetered cubic Al3Mg2, hexagonal Mg2Al3, bodycentered cubic Al2Mg. All alloys were formed at the temperatures several hundreds Kelvin degrees lower than their formation temperatures as defined by the existing binary phase diagrams. Under the overpotentials cathodic to the reversible Mg potential in the used melts, small quantities of body centred magnesium were electrodeposited. They were easier to detect when deposited from nonaqueous melts than from melts with water present. The deposited magnesium was covered and hidden by magnesium oxide and/or magnesium hydroxide that are simultaneously formed at the same potentials. As a result of magnesium electrodeposition under cathodic overpotential in the examined melts, formation of the cubic AuMg phase occurs only on gold. This is not the case with magnesium UPD on gold conducted under the same conditions. Using glassy carbon, platinum, gold and aluminium electrodes and under applied UP and OP potentials from the aqueous nitrate melts, following structures were observed: a) oxides: face-centred MgO, cubic MgO2 and rhombohedral MgO4; b) hydroxides: orthorhombic Mg3(OH)4(NO3)2. Using the same electrodes, from nonaqueous nitrate melts, under applied UP potentials only rombohedral MgO4 and in OP potential region only cubic MgO2 were observed.